This makes sense. It's only a 3/8" line but it feeds into a 5/8" line on mine and by the kit design. I understand some people have left this open/uncapped but I have never tried it. What do people with breathers for pcv do? Pics? Routing?
The vacuum line that attaches to the IMRC is a load reference for the PCM, so leaving it off would not allow the system to work, but attaching the same size line to an increased vacuum source wouldn't either, hence my suggestion for the restrictor. As far as the PCV, on my turbo car, I used to run an open element catch can and never reroute back into the intake.
I don't think the line is getting increased vacuum, but I could be wrong. It's showing up as 10-20" vacuum most of the time until I start giving it more throttle, then around 5-7" it will surge making that normally enjoyable part of mid range throttle a herky jerky reason to just shift and think about Whipple kits.
Interesting. Makes sense. I wouldn't have any idea how much out how to restrict it or tune to it. I sort of have to rely on Lund to know what he's doing with that part.
I understand your point. I would imagine the tuner will eventually get it dialed in. Hopefully the guys at Procharger can look into my suggestion and do some R&D on it
I'm pretty sure Sam at coastal just runs breathers and leaves this line open.
Its very possible, but then again, that's a shop car. Even if daily driven he might be not too concerned about cruising smoothness or an Engine Light.
It's not a ProCharger problem, per se, it's a problem with any power adder that isn't PD. The issue is surging under partial throttle when transiting the area from vacuum to boost. Some tunes have minimized the issue but I don't know that anyone has gotten rid of it completely. I'm picking my car up today. It's been custom dyno tuned but they use SCT which might not have the parameters available to fully remove the problem.
